CN110836273A - Rotary table push-pull opening and closing device for subdividing annular quick-opening blind plate - Google Patents
Rotary table push-pull opening and closing device for subdividing annular quick-opening blind plate Download PDFInfo
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- CN110836273A CN110836273A CN201810939490.XA CN201810939490A CN110836273A CN 110836273 A CN110836273 A CN 110836273A CN 201810939490 A CN201810939490 A CN 201810939490A CN 110836273 A CN110836273 A CN 110836273A
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- thrust
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- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
- F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention provides a rotary table push-pull type opening and closing device for a split annular quick-opening blind plate, which can drive a split ring to open and close a door cover by moving a support rod back and forth. The method specifically comprises the following steps: a thrust groove is processed on one side end face of the rotary disc, and the rotary mechanism is used for pushing the rotary disc to rotate axially; a guide hole is processed on the end surface of the fixed guide rail disc; the circumferential surface of the positioning sleeve is provided with a radial mounting hole. The turntable, the fixed guide rail disc and the positioning sleeve are coaxially arranged, wherein the fixed guide rail disc is positioned between the turntable and the positioning sleeve, the end surface of the turntable where the thrust groove is positioned is opposite to the fixed guide rail disc, and the thrust groove corresponds to the guide holes in the fixed guide rail disc one by one; the fixed guide rail disc and the positioning sleeve are fixedly connected with the door cover; one end of the stay bar is connected with the corresponding split ring, the other end of the stay bar penetrates through the radial mounting hole on the circumferential surface of the positioning sleeve and then is connected with one end of the thrust mechanism, and the other end of the thrust mechanism penetrates through the guide hole on the fixed guide rail disc and is positioned in the thrust groove.
Description
Technical Field
The invention relates to an opening and closing device, in particular to an opening and closing device for a quick-opening blind plate of a pressure container, and belongs to the technical field of quick-opening sealing.
Background
The quick-opening blind plate structure is a mechanical device which is arranged at the end part of a pressure container or a pressure pipeline to realize quick opening and closing, and is widely applied to the industrial fields of petroleum and natural gas, chemical industry, aerospace, electric power energy and the like. Compared with a bolt flange structure, the quick-opening blind plate structure is quicker in door cover opening and closing operation and is suitable for industrial application occasions where the door cover needs to be frequently assembled and disassembled.
The existing quick-opening blind plate structure mainly comprises various structural forms such as a tooth-engaging type, a buckling type, a hoop type, a ring locking type (including a split ring shape) and the like. If the quick-opening blind plate structure is applied to a long-distance pipeline filter and a ball receiving and dispatching cylinder device, structures such as a ring lock type structure, a hoop structure and the like are formed. From the view of assembly and disassembly convenience, the annular lock-shaped structure has the advantages of simple and convenient operation of opening and closing the blind plate door cover, simple and reasonable force bearing structure and the like, and is widely applied to the long-distance pipeline filter. But the application practice shows that some problems still exist in the structure, such as the phenomenon that the door cover is locked and cannot be opened when being opened, the structural design is not compact enough, and the like, and more importantly, the existing ring lock type quick opening structure adopts a structure that a notch is cut by an integral ring, and the two ends of the notch are connected with the door cover and a high neck through an opening and closing device (generally operated manually, similar to a wrench rotating mechanism) by a mechanism so as to bear the axial acting force of the internal pressure; in the opening or closing process of the ring lock, radial size change is achieved mainly through integral deformation of the ring lock, however, along with the increase of the diameter or the internal pressure of the blind plate, the rigidity of the ring lock is larger and larger, acting force required for overcoming deformation is larger and larger, manual operation becomes difficult, a new problem exists in the design of the opening and closing device, and if an electric device is adopted for driving, the complexity and the cost of a mechanism are increased. The split annular ring lock is formed by cutting an integral circular ring into a certain number (weight) of split rings according to the diameter, connecting the split rings by using a support rod, and completing the opening and closing effect of the ring lock by moving (pushing and pulling) the split rings back and forth along the radial direction through the support rod. The integral ring is divided into blocks, so that the opening and closing process can be completed only by overcoming the weight and the friction resistance of the split ring theoretically, the opening and closing force is reduced compared with that of an integral lock ring structure, and the technical problem to be reasonably solved is how to reasonably move the stay bar back and forth and drive the split ring to open and close the door cover.
Disclosure of Invention
In view of the above, the present invention provides a push-pull opening and closing device of a turntable for dividing an annular quick-opening blind plate, through which a dividing ring can be driven to open and close a door cover by moving a stay rod back and forth.
The lock ring of the ring lock type quick-opening blind plate is divided into more than two arc sections along the circumferential direction, and each arc section is a split ring; the locking ring is arranged between the high-neck flange and the door cover; a carousel plug-type headstock gear for subdividing annular quick-opening blind plate includes: the positioning device comprises a turntable, a fixed guide rail disc, a positioning sleeve, a rotating mechanism, support rods which are in one-to-one correspondence with the subdivision rings and thrust mechanisms which are in one-to-one correspondence with the support rods;
arc thrust grooves which correspond to the support rods one by one are machined in the end face of one side of the rotary table, the arc thrust grooves are eccentrically arranged, and the two ends of the arc thrust grooves are located at positions of the rotary table with different diameters; the rotating mechanism is connected with the rotating disc and used for pushing the rotating disc to rotate around the axial direction of the rotating disc;
radial guide holes corresponding to the support rods one to one are processed on the end face of the fixed guide rail disc;
the circumferential surface of the positioning sleeve is provided with radial mounting holes which correspond to the support rods one to one;
the whole connection relationship is as follows: the turntable, the fixed guide rail disc and the positioning sleeve are coaxially arranged, wherein the fixed guide rail disc is positioned between the turntable and the positioning sleeve, the end surface of the turntable, where the arc-shaped thrust groove is positioned, is opposite to the fixed guide rail disc, and the arc-shaped thrust grooves correspond to the guide holes in the fixed guide rail disc one by one; the fixed guide rail disc and the positioning sleeve are fixedly connected with the door cover;
one end of the support rod is connected with the corresponding split ring, the other end of the support rod penetrates through a radial mounting hole in the circumferential surface of the positioning sleeve and then is connected with one end of the thrust mechanism, and the other end of the thrust mechanism penetrates through a guide hole in the fixed guide rail disc and is positioned in the arc-shaped thrust groove; when the rotating mechanism pushes the rotating disc to rotate axially, the two side walls of the arc-shaped thrust groove push the thrust mechanism to move along the guide hole in the fixed guide rail disc, and then the split ring connected with the thrust mechanism is pushed to move along the radial direction of the split ring through the support rod.
The thrust mechanism includes: a pin, a thrust roller and a guide roller;
the axis of the pin is parallel to the axis of the rotary disc and is perpendicular to the stay bar; one end of the stay bar is connected with the corresponding split ring, and the other end of the stay bar penetrates through a radial mounting hole in the circumferential surface of the positioning sleeve and a through hole in the end part of the pin and is pressed and positioned through a compression nut; the other end of the pin is fixedly connected with a guide roller and a thrust roller, wherein the thrust roller is positioned in an arc-shaped thrust groove of the turntable, and when the turntable rotates axially, two side walls of the arc-shaped thrust groove push the thrust roller; the guide rollers are positioned in the guide holes of the fixed guide rail disc.
The rotating mechanism includes: a swivel arm lever and a swivel arm shaft; the rotating arm shaft is vertically and fixedly connected to the end face of the rotating disc, one end of the rotating arm rod is connected with the rotating arm shaft, and the rotating arm rod pushes the rotating disc to rotate axially.
Has the advantages that:
(1) the opening and closing device realizes the door opening and closing process by pushing and pulling the supporting rod connected with the subdivision ring through the turntable, and can effectively reduce the opening and closing force.
(2) The sealing ring is arranged in the groove at the bottom of the door cover or in the groove on the flange step of the high-neck flange, a certain floating distance exists between the initial installation position of the sealing ring and the working position with internal pressure, and therefore, after the working pressure is relieved, the sealing ring does not have the function of jacking force on the door cover and the ring lock, and therefore, the push-pull force of the stay bar and the subdivision ring only needs to mainly overcome the weight (the weight of the subdivision ring and the stay bar) and the friction resistance caused by the weight as the main force, and the size range of opening and closing the large-scale and high-pressure acting door cover can be greatly enlarged by adopting a.
(3) The thrust roller and the guide roller can mutually balance the received acting force, so that the axial direction of the pin is not deflected when being pushed, and the pin rolls to play a role in reducing friction.
Drawings
Fig. 1 is a schematic view of the overall installation of the rotary table push-pull opening and closing device on a quick-opening blind plate in embodiment 1 (at this time, the quick-opening blind plate is in an open state);
fig. 2 and 3 are partial detailed schematic views of the rotary table push-pull opening and closing device in embodiment 1 (the quick-opening blind plate in fig. 2 is in a closed state);
FIG. 4 is a schematic structural view of a turntable;
FIG. 5 is a schematic structural view of a fixed guide track disc;
FIG. 6 is a schematic view of the positioning sleeve;
FIG. 7 is a schematic view of the mating of the fixed guide track disk and the turntable;
fig. 8 is a partial detailed schematic view of the rotary disk push-pull opening and closing device in embodiment 2.
Wherein: 1-splitting a ring; 2-a stay bar; 3-rotating the arm; 4-a turntable; 5-a swivel arm shaft; 6-positioning pins; 7-a set screw; 8-a thrust roller; 9-guide rollers; 10-fixing a guide rail disc; 11-a positioning sleeve; 12-pin; 13-a compression nut; 14-a sealing ring; 15-a hubbed flange; 16-a door cover; 17-an arc-shaped thrust slot; 18-pilot hole.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Example 1:
the embodiment provides a carousel plug-type headstock gear for vaulting pole subdivision annular quick open blind board, and the device is installed on ring lock formula quick open blind board structure, realizes opening the door and closes the door process through opening and close of subdivision ring.
As shown in fig. 1, the ring lock is installed between a blind flange high neck flange 15 (a flange arranged at the inlet and outlet position of the pressure vessel) and a door cover 16, the integral ring lock is evenly divided into a plurality of arc sections along the circumferential direction, each arc section is a split ring 1, each split ring is connected with a support rod 2 pointing to the blind plate, and the opening and closing effect of the ring lock is completed by enabling the support rod 2 to move back and forth (push and pull) along the radial direction. In this embodiment, the integral ring lock is divided into six split rings 1, and six support rods 2 are correspondingly arranged. In this embodiment, the stay bar 2 is disposed on the surface of the door cover 16 (suitable for the situation that the door cover has a large diameter and is not easy to be punched), the end of the stay bar 2 is provided with a connecting block in threaded connection with the stay bar 2, and the connecting block is welded with the split ring 1 corresponding to the connecting block, so that the stay bar 2 is fixedly connected with the split ring 1.
As shown in fig. 2 and 3, the movement of the stay bar 2 is realized by a turntable push-pull opening and closing device installed on the door cover 16, which includes: the rotary arm rod 3, the rotary table 4, the fixed guide rail disc 10, the positioning sleeve 11 and the thrust mechanism.
The structure of the rotary table 4 is shown in fig. 4, thrust grooves corresponding to the support rods 2 one by one are processed on one side end face of the rotary table 4, in the embodiment, the thrust grooves are six arc-shaped thrust grooves uniformly distributed along the circumferential direction of the rotary table 4, the arc-shaped thrust grooves are impeller-shaped, that is, the arc-shaped thrust grooves are not coaxial with the rotary table 4, and two ends of the arc-shaped thrust grooves are located at positions of the rotary table 4 with different diameters; the end face of the other side of the rotary disc 4 is connected with a rotary arm rod 3 through a rotary arm shaft 5 which is perpendicular to the end face of the rotary disc 4, and the rotary disc 4 can be pushed to rotate around the axial direction of the rotary arm rod 3.
The fixed guide rail disc 10 is structured as shown in fig. 5, a plurality of positioning holes are distributed on the end surface of the fixed guide rail disc 10 along the circumferential direction, bar-shaped guide holes corresponding to the support rods 2 one to one are processed on the end surface of the fixed guide rail disc 10, and the six bar-shaped guide holes are radially arranged along the fixed guide rail disc 10 and are uniformly distributed along the circumferential direction of the fixed guide rail disc 10.
The structure of the positioning sleeve 11 is shown in fig. 6, the positioning sleeve 11 is used for positioning the stay bar 2, a plurality of positioning holes are distributed on the end surface of the positioning sleeve 11 along the circumferential direction, and radial mounting holes corresponding to the stay bars 2 one to one are arranged on the circumferential surface of the positioning sleeve.
The thrust mechanisms correspond to the support rods 2 one by one and comprise pins 12, guide rollers 9 and thrust rollers 8. The axial direction of the stay bar 2 is vertical to the axial line of the positioning sleeve 11, and six stay bars 2 are distributed along the circumferential direction of the positioning sleeve 11 and correspond to radial mounting holes on the circumferential surface of the positioning sleeve 11 one by one. The method specifically comprises the following steps: one end of the stay bar 2 is connected with the corresponding split ring 1, and the other end of the stay bar passes through a radial mounting hole on the circumferential surface of the positioning sleeve 11 and a through hole at the end part of a pin 12 in the corresponding thrust mechanism and then is pressed and positioned by a compression nut 13. The other end of the pin 12 is fixedly connected with a guide roller 9 and a thrust roller 8, wherein the guide roller 9 is positioned in a guide hole of the fixed guide rail disc 10, and the thrust roller 8 is positioned in a thrust groove of the turntable 4.
During actual installation, the positioning sleeve 11 is fixed on the door cover 16 through the positioning pin 6, then the end part of the stay bar 2 penetrates through a radial installation hole on the circumferential surface of the positioning sleeve 11, the pin 12 is installed on the stay bar 2, a gasket is placed, and the compression nut 13 is screwed; then the positioning hole on the fixed guide rail disc 10 passes through the positioning pin 6, and simultaneously the guide hole on the fixed guide rail disc 10 passes through the pin 12, so that the fixed guide rail disc 10 is coaxially placed on the positioning sleeve 11; then the guide roller 9 passes through the pin 12 and is put into the guide hole of the fixed guide rail disc 10; then, the thrust rollers 8 penetrate through the pins 12 and are positioned above the guide rollers 9, the rotary table 4 is coaxially arranged above the fixed guide rail disc 10, and the thrust grooves of the rotary table 4 are covered on the thrust rollers 8, so that the thrust rollers 8 are positioned in the corresponding thrust grooves of the rotary table 4 one by one; finally, a fixing screw 7 penetrates through a central hole formed after the turntable 4, the fixed guide rail disc 10 and the positioning sleeve 11 are coaxial, and the fixed guide rail disc 10 is fixed on the door cover 16; the fixing screws 7 are in clearance fit with the rotary table 4, the rotary table 4 can rotate independently, and the fixing screws 7 simultaneously realize axial positioning of the rotary table 4, the fixed guide rail disc 10 and the positioning sleeve 11. Make six 2 vaulting poles assemble on installing carousel 4 at center department through the pin 12 of taking the gyro wheel from this, promote the rotatory certain angle of carousel 4 through rotatory armed lever 3, at the rotatory in-process of carousel 4, 2 tip thrust roller 8 of thrust groove both sides wall push-and-pull vaulting pole on the carousel 4, thereby make guide roller 9 remove in the guiding hole, because the guiding hole along the radial setting of fixed rail disc 10, and then drive vaulting pole 2 through pin 12 and have radial displacement, make the subdivision ring 1 that links to each other with vaulting pole 2 in the spread groove of radial movement business turn over hut flange 15, realize opening the door and close the door process.
In the opening and closing process, a certain gap which can enter and exit is reserved between the split ring 1 and the connecting groove of the high-neck flange 15, and the gap is realized by a sealing ring 14 with a floating function. The gasket 14 is located in a groove in the bottom of the door 16. The initial installation position of the sealing ring 14 and the working position with internal pressure have a certain floating distance, so that after the working pressure is relieved, the sealing ring 14 does not have the function of jacking force on the door cover 16 and the locking ring, and the condition that the opening and closing of the ring lock are not influenced by resistance is ensured. Therefore, the push-pull force of the stay bar 2 and the subdivision ring 1 only needs to overcome the weight (the weight of the subdivision ring and the stay bar) and the friction resistance caused by the weight as main parts, and the rotating arm force (torque) of the turntable 4 only needs to overcome the resistance torque; because the influence of the resistance on the opening and closing of the locking ring is smaller than the influence of uncertain resistance generated because the tight jacking of the sealing ring cannot be eliminated, the size range of the manual wrench for controlling the opening and closing of the large and high-pressure acting door cover is greatly enlarged.
Example 2:
as shown in fig. 8, the difference from the above embodiment 1 is that in this embodiment, the stay bar 2 is located in the through hole inside the door cover, and is suitable for a small diameter door cover, and the end of the stay bar 2 is directly screwed with the corresponding split ring 1; in this embodiment the sealing ring 14 is located in a groove in the step of the flange of the neck flange 15.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The rotary table push-pull type opening and closing device is used for dividing the annular quick-opening blind plate, a lock ring of the annular lock type quick-opening blind plate is divided into more than two arc-shaped sections along the circumferential direction, and each arc-shaped section is a dividing ring (1); the locking ring is mounted between the hubbed flange (15) and the door cover (16); characterized in that, the headstock gear includes: the device comprises a turntable (4), a fixed guide rail disc (10), a positioning sleeve (6), a rotating mechanism, support rods (2) which correspond to the subdivision rings (1) one by one and thrust mechanisms which correspond to the support rods (2) one by one;
arc thrust grooves which correspond to the support rods (2) one by one are machined in the end face of one side of the rotary table (4), the arc thrust grooves are eccentrically arranged, and the two ends of the arc thrust grooves are located at positions of the rotary table (4) with different diameters; the rotating mechanism is connected with the rotating disc (4) and is used for pushing the rotating disc (4) to rotate around the axial direction of the rotating disc;
radial guide holes corresponding to the support rods (2) one by one are processed on the end face of the fixed guide rail disc (10);
the circumferential surface of the positioning sleeve (11) is provided with radial mounting holes which correspond to the support rods (2) one by one;
the whole connection relationship is as follows: the turntable (4), the fixed guide rail disc (10) and the positioning sleeve (11) are coaxially arranged, wherein the fixed guide rail disc (10) is positioned between the turntable (4) and the positioning sleeve (11), the end face of the turntable (4) where the arc-shaped thrust groove is located is opposite to the fixed guide rail disc (10), and the arc-shaped thrust groove corresponds to the guide holes in the fixed guide rail disc (10) one by one; the fixed guide rail disc (10) and the positioning sleeve (11) are fixedly connected with the door cover (16);
one end of the support rod (2) is connected with the corresponding split ring (1), the other end of the support rod penetrates through a radial mounting hole in the circumferential surface of the positioning sleeve (11) and then is connected with one end of the thrust mechanism, and the other end of the thrust mechanism penetrates through a guide hole in the fixed guide rail disc (10) and is positioned in the arc-shaped thrust groove; when the rotating mechanism pushes the turntable (4) to rotate around the axial direction of the turntable, the two side walls of the arc-shaped thrust groove push the thrust mechanism to move along the guide hole on the fixed guide rail disc (10), and then the support rod (2) pushes the splitting ring (1) connected with the support rod to move along the radial direction of the splitting ring.
2. The turntable push-pull opening and closing device for subdividing an annular quick-opening blind plate as recited in claim 1, wherein the thrust mechanism comprises: a pin (12), a thrust roller (8) and a guide roller (9);
the axis of the pin (12) is parallel to the axis of the turntable (4) and is perpendicular to the stay bar (2); one end of the stay bar (2) is connected with the corresponding split ring (1), and the other end of the stay bar penetrates through a radial mounting hole on the circumferential surface of the positioning sleeve (11) and a through hole at the end part of the pin (12) and then is pressed and positioned by a compression nut (13); the other end of the pin (12) is fixedly connected with a guide roller (9) and a thrust roller (8), wherein the thrust roller (8) is positioned in an arc-shaped thrust groove of the turntable (4), and when the turntable (4) rotates around the axial direction of the turntable, two side walls of the arc-shaped thrust groove push the thrust roller (8); the guide rollers (9) are positioned in the guide holes of the fixed guide rail disc (10).
3. The rotary table push-pull opening and closing device for subdividing an annular quick-opening blind plate according to claim 1 or 2, wherein the rotating mechanism comprises: a rotary arm lever (3) and a rotary arm shaft (5); the rotating arm shaft (5) is fixedly connected to the end face of the rotating disc (4) in a perpendicular mode, one end of the rotating arm rod (3) is connected with the rotating arm shaft (5), and the rotating arm rod (3) pushes the rotating disc (4) to rotate around the axial direction of the rotating disc.
4. The rotary table push-pull type opening and closing device for subdividing annular quick-opening blind plates as claimed in claim 1 or 2, characterized in that a sealing ring (14) is arranged in a groove at the bottom of the door cover (16) or on a groove of a flange of the high-neck flange (15), and a set floating distance exists between the initial installation position of the sealing ring (14) and the working position with internal pressure.
5. The rotary table push-pull opening and closing device for subdividing annular quick-opening blind plates as claimed in claim 1 or 2, wherein more than one positioning hole is circumferentially arranged on the end faces of the fixed guide rail disc (10) and the positioning sleeve (6), and the positioning holes are used for being matched with the positioning pins (6) to fixedly connect the fixed guide rail disc (10) and the positioning sleeve (6) with the door cover (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939490.XA CN110836273A (en) | 2018-08-17 | 2018-08-17 | Rotary table push-pull opening and closing device for subdividing annular quick-opening blind plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939490.XA CN110836273A (en) | 2018-08-17 | 2018-08-17 | Rotary table push-pull opening and closing device for subdividing annular quick-opening blind plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110836273A true CN110836273A (en) | 2020-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810939490.XA Pending CN110836273A (en) | 2018-08-17 | 2018-08-17 | Rotary table push-pull opening and closing device for subdividing annular quick-opening blind plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110836273A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH607643A5 (en) * | 1976-08-24 | 1978-09-29 | Sidler Stalder Sistag Maschine | Shut-off device |
| CN104806756A (en) * | 2015-03-09 | 2015-07-29 | 黄冈市钰丰精密五金有限公司 | Wedge block type quick opening blind plate |
| CN105240526A (en) * | 2015-10-15 | 2016-01-13 | 北京石油化工学院 | Subdivision ring type fast opening device for container sealing end cover and natural gas filter |
| CN108119725A (en) * | 2017-12-19 | 2018-06-05 | 贵州航天乌江机电设备有限责任公司 | A kind of lock ring type major diameter mesohigh fast opening blind |
| CN208764360U (en) * | 2018-08-17 | 2019-04-19 | 北京化工大学 | The plug-type headstock gear of turntable for subdivision annular fast opening blind |
-
2018
- 2018-08-17 CN CN201810939490.XA patent/CN110836273A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH607643A5 (en) * | 1976-08-24 | 1978-09-29 | Sidler Stalder Sistag Maschine | Shut-off device |
| CN104806756A (en) * | 2015-03-09 | 2015-07-29 | 黄冈市钰丰精密五金有限公司 | Wedge block type quick opening blind plate |
| CN105240526A (en) * | 2015-10-15 | 2016-01-13 | 北京石油化工学院 | Subdivision ring type fast opening device for container sealing end cover and natural gas filter |
| CN108119725A (en) * | 2017-12-19 | 2018-06-05 | 贵州航天乌江机电设备有限责任公司 | A kind of lock ring type major diameter mesohigh fast opening blind |
| CN208764360U (en) * | 2018-08-17 | 2019-04-19 | 北京化工大学 | The plug-type headstock gear of turntable for subdivision annular fast opening blind |
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